#VU118090 Resource exhaustion in XGrammar - CVE-2025-32381
Published: November 4, 2025
Vulnerability identifier: #VU118090
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-32381
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
XGrammar
XGrammar
Software vendor:
mlc-ai
mlc-ai
Description
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when parsing unique JSON schemas. A remote user can trigger resource exhaustion and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.